Ψάξε όποια λέξη θες, όπως the eiffel tower:
 
1.
Despite your best efforts, there are some things you just can't fix/improve.

To point out futile attempts to conceal/change the baisc nature of something.
1) Joe: Danny's back in town. He lost a bunch of weight, got a nose job, got hair plugs and now wears really flashy clothes but he's still one ugly motherfucker.

Jim: Well, you can't polish a turd.

2) The comb-over hairstyle
από henryj 2 Μάιος 2006
 
2.
No matter how nice someone acts or good someone dresses, it doesn't change the fact that the person is at that time seen as an asshole.
Scene from Californication: protagonist suits up for a trial when daughter walks in.
Protagonist: 'How do I look?'
Daughter: 'You know what they say...can't polish a turd.'
από AnaleTaart 12 Αύγουστος 2011